
This episode covers the stories of Barbara Petrovsky, Katherine Bennett, and Alex Cooper, highlighting themes of obsession, mystery, and identity. It features interviews with family members and police officials involved in these cases.
Barbara Petrovsky, once a beauty queen, became involved with Richard Mins, a wealthy bodybuilder. Their relationship turned violent, culminating in an attack that left Barbara paralyzed. She believes Mins orchestrated the attack after their tumultuous breakup.
Katherine Bennett, an eccentric recluse from Portland, Oregon, passed away leaving behind an estate worth over $125,000. Investigators struggled to find her heirs due to her secretive past and lack of known relatives.
The episode also updates the case of Alex Cooper, who disappeared in 1987. After being declared dead, he was found alive in Toronto, revealing a complex history of identity changes and evasion of his past.
Throughout the episode, viewers are encouraged to help solve these mysteries, connecting with the families and the unresolved questions surrounding these individuals.
Barbara Petrovsky's violent relationship with Richard Mins leads to her paralysis; Katherine Bennett's hidden wealth raises questions about her heirs; Alex Cooper's identity crisis unfolds.

This episode stands out for the following:
You cannot dwell on it, it will destroy you.Unsolved Mysteries with Robert Stack - Season 4, Episode 20 - Full Episode
She just lost everything, I guess.Unsolved Mysteries with Robert Stack - Season 4, Episode 20 - Full Episode
I want to give him a real big hug... and then another big hug.Unsolved Mysteries with Robert Stack - Season 4, Episode 20 - Full Episode
Abandonment of your family to me is one hell of a crime.Unsolved Mysteries with Robert Stack - Season 4, Episode 20 - Full Episode